Synchronised Blockstates

The 1.21.1 version's source code & project setup was a total mess, so I did an entire rewrite for 1.20.1 - this time doing it right.

Improvements:

• Massively reduced the encoded size of blockstates:
  • Approximately an 8x reduction in size over the original 1.3.0 release for just vanilla states
  • Approximately a 37x reduction over 1.3.0 in certain large modpacks (hard to test due to 1.20.1/1.21.1)
• Massively improved parsing and remapping times
  • Measured 70x improvement over 1.3.0 on even very lightly modded modpacks
• Now properly handles:
  • Properties that only exist on the client
  • Properties that only exist on the server
  • Property values that only exist on the client
  • Property values that only exist on the server

I wrote version 2.0.0 in a way that should be easy to port to 1.21.1 again, and I already have ideas for further improvements and optimizations for a hypothetical 2.1.0 release.

Additionally, there are plans for a Forge/NeoForge release sometime in future if I ever get the time.